Cheapest return flights from Denver to Madrid in October from $481

AirHint found the following cheapest return flights from Denver (DEN) to Madrid (MAD) in October 2025 (see full year).

Return flights

29 Oct - 22 Nov Frontier Airlines
29 Oct - 05 Nov Lufthansa
20 Oct - 15 Nov Air Canada
17 Oct - 21 Oct Air Canada
30 Oct - 06 Nov British Airways
24 Oct - 31 Oct Iberia
22 Oct - 29 Oct Air Canada
27 Oct - 03 Nov Air Canada
17 Oct - 24 Oct Lufthansa
28 Oct - 04 Nov Air Canada
23 Oct - 30 Oct Air Canada
20 Oct - 27 Oct British Airways
18 Oct - 25 Oct United
21 Oct - 28 Oct British Airways
31 Oct - 15 Nov British Airways
26 Oct - 02 Nov British Airways
31 Oct - 07 Nov Frontier Airlines
25 Oct - 01 Nov Iberia
23 Oct - 26 Oct Frontier Airlines
17 Oct - 26 Oct Iberia

Also check the deals for one-way flights from Denver to Madrid in October.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Feel free to contact us with any feedback or request another flight research.